Corydoras melanistius "Surinam"

[Shaun]

Saw some Corys labelled as this recently, although juveniles they look slightly different to Corydoras brevirostris and Corydoras melanistius. Are they perhaps a C-Number or just a locality type of the above 2 species? Can't get any pics, they're in a shop a fair way from me, if I go back it will be to BUY.
Thanks,
Shaun

[Marc van Arc]

"Surinam" is probably to indicate the place they originate from and - if so - I'd say they are

Corydoras brevirostris

. Have a look for yourself.

[joern]

Hi,

that is´probably something like this Cory-type:
http://www.planetcatfish.com/forum/view ... highlight=

Nice fish and easy to keep.

[Shaun]

Thanks for your help
I bought 6, and they seem to be a mixed shipment of C. brevirostris and C. melanistius. Some have patterning on their tails and some don't.
Shaun

[Shaun]

Just bought another 5 under the same name, larger size then the last lot. There seem to be vaious differences on some individuals: the black mark sometimes extends to the top of the dorsal fin, the spotted pattern seem uniform on some and then irregular on others and like the spots are organized into "lines" on a few, the cadual fin has no pattern on some of them and has various spots and stripes on others.
So am I being overly picky? Should I wait until they all attain adult size before I try to place them into species groups? Are C. melanistius and C brevirostris found in the same localities?
Thanks,
Shaun.

[Marc van Arc]

Are C. melanistius and C brevirostris found in the same localities?

Yes, there's quite an overlap (see individual species data sheet in Cat-eLog; category Distribution).

[joern]

Hi

exporters may mix also similar looking fish.